A nonlinear wiener process degradation model with damage resistance for reliability analysis

IF 4.5 3区 管理学 Q1 OPERATIONS RESEARCH & MANAGEMENT SCIENCE
Yuhan Hu, Mengmeng Zhu, Huizhong Lin
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引用次数: 0

Abstract

Systems commonly experience competing risks of internal degradation and random shocks. Random shocks may cause damage to the system, and the degrees of the damage affect system degradation differently. In this paper, we consider a system, namely, a damage-resistant system, designed to withstand shocks up to a specified threshold. To consider the system damage resistance, we first propose a new shock classification based on the shock magnitude and define the damage resistance level of the system accordingly. Furthermore, because the system will be more vulnerable to shocks over time, we divide the system degradation process into two stages and propose nonlinear Wiener process degradation models with two stages by incorporating the system damage resilience level with the new shock classification. The closed-form system reliability functions for these two stages are further derived. Lastly, we conduct numerical examples with real-world data to demonstrate the practical application of our proposed model.

Abstract Image

Abstract Image

基于损伤抗力的非线性维纳过程退化模型的可靠性分析
系统通常会经历内部退化和随机冲击的竞争风险。随机冲击会对系统造成破坏,破坏程度对系统退化的影响不同。在本文中,我们考虑一个系统,即一个抗损伤系统,被设计为能够承受高达指定阈值的冲击。为了考虑系统的抗损伤性,我们首先提出了一种新的基于冲击幅度的冲击分类方法,并据此定义了系统的抗损伤等级。此外,由于系统随着时间的推移更容易受到冲击的影响,我们将系统退化过程分为两个阶段,并通过将系统损伤恢复水平与新的冲击分类相结合,提出了具有两个阶段的非线性维纳过程退化模型。进一步推导了这两个阶段的闭式系统可靠性函数。最后,我们用实际数据进行了数值算例,以证明我们提出的模型的实际应用。
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来源期刊
Annals of Operations Research
Annals of Operations Research 管理科学-运筹学与管理科学
CiteScore
7.90
自引率
16.70%
发文量
596
审稿时长
8.4 months
期刊介绍: The Annals of Operations Research publishes peer-reviewed original articles dealing with key aspects of operations research, including theory, practice, and computation. The journal publishes full-length research articles, short notes, expositions and surveys, reports on computational studies, and case studies that present new and innovative practical applications. In addition to regular issues, the journal publishes periodic special volumes that focus on defined fields of operations research, ranging from the highly theoretical to the algorithmic and the applied. These volumes have one or more Guest Editors who are responsible for collecting the papers and overseeing the refereeing process.
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